# Working memory is efficient when it stores relevant information

We have Working memory is limited to four chunks. Even though Chunking increases working memory capacity, what differentiates individuals' optimum use is the relevance of information being stored there. If you can keep what you have in your head relevant, you are more efficient than others.


# References

Goldstein, Cognitive Psychology (pp. 148-149).

The study by Vogel et al. (2005) was a groundbreaking study because it was one of the first to provide hard evidence for the suggestion that individual difference in working memory capacity do not just reflect how many items can be stored but how more efficiently irrelevant information can be kept out. In other words, working memory capacity variations are not about the absolute size of storage space but about only keeping relevant information in there.